The keyboard is normal, but before it was a Logitech membrane, where I worked on it for 7-9 years, pounded my fist in a big way when I played shooters)), spilled everything on it from milk and coffee to beer and whiskey, a little burnt with a cigarette)), having sorted out soap and soap under running water, and she is a more alive than all the living! So far, keystrokes have been made to be softer and more elastic, which is something that I prefer to this 820's mechanics for some reason. Back to Bloody B820R (Red Switches), the backlight is obviously gorgeous, and you can customize both the color it emits and the amount of brightness it produces. If on transfusion as in all advertisements CL with backlight - then it is entirely superfluous, it disrupts work, and it causes color music to appear under the eyes. I play video games online, most of which are first-person shooters that require a quick reaction time; yet, I did not see any increase in speed as compared to the previous membrane non-killer! Despite the fact that the maker points to this as the primary justification, even the packaging mentions her extraordinary dexterity. Probably just five straightforward marketing strategies, such as making a hole in the cigarette filters (which, in their view, constitutes a major innovation in the world). Should I get another Claudia like this one? I don't know, I probably would have bought it, but I was dissatisfied with its layout and the promised speed, which, as they promised, was not yet on planet earth! I would have bought it anyway.